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A square group of 9 piles was driven into soft clay extending to a large depth. The diameter and length of the piles were 300 mm and 9 m respectively.

If undrained cohesion is 45 kN/m$^{2}$ and the pile spacing is 1 m centre to centre. What is the capacity of group? Take factor of safety of 2 and adhesion factor as 0.7.

pile problems • 168  views
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